294 
sure branches of sutures, also of the sutura parietalis are known, and 
have a. o. once been described by HRrDLICRA (3) in Cebus capucinus. 
The length of this strange suture is + 65 m. M. The linea temporalis 
runs just above it, on a distance of 1 or 2 m. M. The distance of the 
sut. par. to the sut. sag. is 27 m M and of the first to the sut. squam. 
about 23 m. M. 
Macacus nemestrinus, see fig. 2. 
I have been able to examine the collection of Monkey skulls in 
the ,,Rijks Museum van Natuurlijke Historie“ at Leiden, owing to the 
particular kindness of the Director Dr. JENTInKk. I found the sutura 
parietalis three times on about 300 skulls. Once a vertical suture, 
ne 
h : 
| N 
AH, 
ES NE er 
/ —— Ty 
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De 
LOY CP u 
(see fig. 2) once a horizontal one (see fig. 3) and once a small bilateral 
indication of it in: a. Cercocebus aethiops. cat. No. 6 v. sp. cat. No. 2. 
I shall further deseribe here the first two cases. So it seems that we 
find the sutura parietalis in the above-mentioned collection in 1% of 
the cases. Hrprıcka found among 410 monkey skulls which he 
examined in New York, Philadelphia, Washington and Cambridge, 
18%, so far more. The first case I found was of Macacus nemestri- 
nus, a vertical suture, see fig. 2. On the label was written: 
p. Macacus nemestrinus 1882. B. Hagen. 
Tandjong Morawa. Deli. 
The skull is complete. The sut. par. is only to be seen on the 
left side, no trace of it can be found on the right side. Remarkable 
is the bend in the sut. squam. to the left, which is perhaps connected 
with the abnormal suture. Now we also find this same bend on the 
